OnTimeStats

Historical on-time performance

Milwaukee to Phoenix

1,460 miData through May 2026Source: US DOT · BTS

Flights on MKE–PHX arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights

based on 1,485 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Southwest Airlines
    On-time80%
    Medianon time
    p9030 min
    Cancel0.4%
    Flights996
  • American Airlines
    On-time76%
    Medianon time
    p9045 min
    Cancel1.8%
    Flights489

Why flights run late

Delay causes

  • Airline51%
  • Weather2%
  • Air traffic (NAS)12%
  • Late aircraft35%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline15%
  • Weather69%
  • Air traffic (NAS)15%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 13 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly MKE → PHX

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 89% on time.

  • Mornings89% on time · p90 15 min · 1,722 flights
  • Middays83% on time · p90 25 min · 611 flights
  • Afternoons80% on time · p90 35 min · 849 flights
  • Evenings71% on time · p90 55 min · 1,025 flights
  • Overnights63% on time · p90 60 min · 104 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 84% on time.

  • Tuesdays84% on time · p90 20 min · 583 flights
  • Fridays83% on time · p90 30 min · 631 flights
  • Mondays83% on time · p90 25 min · 624 flights
  • Wednesdays82% on time · p90 30 min · 591 flights
  • Saturdays80% on time · p90 30 min · 662 flights
  • Sundays80% on time · p90 35 min · 586 flights
  • Thursdays79% on time · p90 30 min · 634 flights

Keep exploring

Related pages

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.